Table of Contents
Advertisement
Installation, Operation, and Maintenance
Vertical High Rise Fan Coil Units —
FCV
0.75 to 3 Tons
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.
June 2021
SAFETY WARNING
UNT-SVX041D-EN
Advertisement
Table of Contents
Troubleshooting
Related Manuals for Trane FCV
Summary of Contents for Trane FCV
- Page 1 Installation, Operation, and Maintenance Vertical High Rise Fan Coil Units — 0.75 to 3 Tons SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
- Page 2 (Global Harmonized System of Classification and compounds have the same potential impact to the Labeling of Chemicals) guidelines for information on environment. Trane advocates the responsible handling of allowable personal exposure levels, proper all refrigerants-including industry replacements for CFCs respiratory protection and handling instructions.
- Page 3 Copyright This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.
-
Page 4: Table Of Contents
Table of Contents Vertical High Rise Fan Coil Installation - Piping ....7 ..... .26 Coil Identification . - Page 5 Table of Contents Air-Fi® Wireless Communications Interface Error Codes ......62 (WCI) ......48 Lock Symbol .
- Page 6 Table of Contents Servicing and Testing Tools ..77 Procedure for Testing Zone Sensor ..77 Procedure for Testing Receiver ..77 Forcing a Sensor to Transmit .
-
Page 7: Vertical High Rise Fan Coil
Digit 28 - Auxiliary Control Valve 4 Row Changeover Digits 1, 2, 3 - Unit Type 3 Row Cooling / 1 Row Reheat FCV = Vertical High Rise Fan Coil None 4 Row Cooling / 1 Row Reheat 2-Way 1.4 Cv... - Page 8 Model Number Description Digit 33 - Control Options Digit 41 - DIA, Auxiliary Supply Riser None Setpoint Dial Zone Sensor (3-in. No Auxiliary Risers / Ship pigtail) Separate Riser Set Point Dial Zone Sensor with 0.75-in. Auxiliary Risers Comm (3-in. pigtail) 1.00-in.
-
Page 9: High Rise Fan Coil Accessories
Model Number Description High Rise Fan Coil Digit 12 - DIA, Drain/ Condensate Riser Accessories No Drain Riser 0.75-in. Type M Copper with 3/8-in. Insulation Digit 1 - Cabinet Options 1.25-in. Type M Copper with Single Unit 3/8-in. Insulation Primary Unit Digit 13 - Length of All Risers Digit 2 - Copper Riser Type 100-in. -
Page 10: Pre-Installation
Upon delivery, thoroughly inspect all components for any Notify your Trane sales representative of the damage shipping damage that may have occurred, and confirm and arrange for repair. Do not attempt to repair the unit that the shipment is complete. -
Page 11: Contractor's Responsibilities
Pre-Installation Contractor’s Responsibilities The fan coil unit has a threaded connection at the shut off valves. These connections must be tightened prior to pressure testing the system by the contractor as part of the Unless otherwise requested by the customer at the time of installation procedure. -
Page 12: Dimensions And Weights
Dimensions and Weights Vertical High Rise Fan Coil Units Top Discharge Units Figure 1. Top discharge (short) unit 3.00 3.00 3.00 4.13 4.13 3.00 FRONT VIEW RIGHT SIDE VIEW CONTROL DUCT COLLAR 20.00 1.00 PLUG CONNECTION FOR THERMOSTAT 2.60 2.35 POWER WIRING 1.00 1 3/32 in HOLE... - Page 13 Dimensions and Weights Figure 2. Front and side discharge unit 3.00 3.00 3.00 4.13 4.13 3.00 RIGHT SIDE VIEW FRONT VIEW SUPPLY 1.00 OPENING(S) 1.00 3.00 DUCT 1.00 COLLAR CONTROL PLUG CONNECTION 2.60 FOR THERMOSTAT POWER WIRING 2.35 1 3/32 in HOLE 1.00 WITH PLUG 3.39...
-
Page 14: Units Without Risers
Dimensions and Weights Table 2. Full dimensions Single Supply Double Supply Top Supply Size 16.15 1.88 16.15 1.88 19.15 3.38 19.15 3.38 1000 23.15 10.5 5.38 1200 23.15 10.5 5.38 Units Without Risers Figure 3. Units without risers Back Back 2.31 Supply and return 2.25... - Page 15 Dimensions and Weights Fan Coil Weights Table 4. Weights for fan coil units Size Weight 1000 1200 The weights are approximate. Risers, external sheet metal accessories and supply air grilles are not included in the weight. UNT-SVX041D-EN...
-
Page 16: Installation - Mechanical
Installation - Mechanical Installation of the fan coil units should begin on the lowest floor and progress upward—floor-by-floor—to the top. Tip NOTICE the unit over the riser hole in the building floor. As the unit Equipment Damage! is righted, align the risers with the unit below. Field- Failure to follow instructions below could result in furnished isolator pads or shims, if required, should be distortion of equipment. -
Page 17: Enclosing The Unit
Installation - Mechanical Drywall Installation • Open the supply side ball valve and bleed air from the coils. The coil has a manual air vent for this purpose. The top of each riser should also have an air vent (not NOTICE provided by the factory). -
Page 18: Close Up
Installation - Mechanical Close Up Louver Return Air Panel 1. The louver return air panel will ship with fasteners After drywall is in place and rooms are prepared for final installed. wall treatment, the supply and return-air openings and 2. Hook the panel over the bottom collar of the fan coil control compartment opening should be securely covered unit, rotate the panel upright so that it is against the to prevent introduction of foreign material. -
Page 19: Return Air Panel (Perimeter Return Air Panel) With Cover
Installation - Mechanical Return Air Panel (Perimeter Return Air Table 8. Nominal return air door size Panel) with Cover Size Door size (inches) 300, 400 18 x 56 1. If the drywall has not been installed flush with the outer 600. -
Page 20: Fan Coil Unit - Risers Installed Separately
Installation - Mechanical the riser, the anchor point will be at the mid point Table 9. Typical fan coil installation between two sets of loops. For example, in a 30-story building, typically there will be expansion loops on Fan coil unit floors 10 and 20, with anchors on floors 5, 15, and 25. -
Page 21: Primary/Secondary Unit
Installation - Mechanical Table 11. P-trap size when installed on side of unit Table 12. Fan coil installation when risers are installed separately callouts Cutoff Dimension Size 3.04 2.20-in. 5.90-in. Fan coil unit Size 6.08 2.20-in. 4.00-in. Size 10.12 2.20-in. 2.00-in. -
Page 22: Riser Packages
Installation - Mechanical Riser Packages Figure 9. Riser 2-pipe package 3.000 3.000 Top View S C R S = Supply Riser Back Risers Left Risers Right Risers R = Return Riser C = Condensate Riser Figure 10. Riser 4-pipe package 3.000 3.000 4.13... - Page 23 Installation - Mechanical Figure 11. Riser installation dimensions (inches) Standard Installation Using Standard Installation Field Supplied Spool Pieces 89 in. 89 in. F - L + 4 in. 89 in. 89 in. L = F + 2 inches Spool Piece Length = F - L + 4 inches L = F - Spool Length + 4 inches UNT-SVX041D-EN...
-
Page 24: Location Of Floor Opening For Risers
Installation - Mechanical Location of Floor Opening for Table 14. Dimensions Risers Fan Coil Model Width (inches) Length (inches) 2-pipe unit 4-pipe unit Figure 12. Location of floor opening for risers Note: When the project has riser pipe diameters two inches or larger, plus 3/4 inch thick insulation, dimension “W”... - Page 25 Installation - Mechanical Figure 13. Recommended installation layout for field-provided risers 3.00 3.00 4.13 4.13 Top View Cond HWS = Hot Water Supply Riser Back Riser Right Riser HWR = Hot Water Return Riser CWS = Chilled Water Supply Riser Left Riser CWR = Chilled Water Return Riser Cond.= Condensate Riser...
-
Page 26: Installation - Piping
Because the circuiting varies by the specific coil equaling four pipes. Trane coils use a common tube sheet design, the location of the inlet and outlet connections for four-pipe coils. Example: A four-row, chilled-water coil may vary up and down. -
Page 27: Pipe Connections For Units Without Risers
Installation - Piping Pipe Connections for Units Without Risers Figure 16. Pipe connections for units without risers Back Back 2.31 Supply and return 2.25 connections 1/2 in. Copper pipe 4.13 6.00 4.13 6.00 86.00 8.25 8.25 Supply and return connections 1/2 in. -
Page 28: Installation - Electrical
Installation - Electrical Grounding WARNING Hazardous Voltage w/Capacitors! WARNING Failure to disconnect power and discharge capacitors Proper Field Wiring and Grounding before servicing could result in death or serious injury. Disconnect all electric power, including remote Required! disconnects and discharge all motor start/run Failure to follow code could result in death or serious capacitors before servicing. -
Page 29: Power And Control Cable Entry Points
Installation - Electrical Power and Control Cable Entry Table 15. Available control options Points Letter /Digit Description Control by others, installed by others, terminal strip provided. Figure 17. Power and control cable entry points Setpoint Dial Zone Sensor (3 inch) Setpoint Dial Zone Sensor w/Comm (3 inch) Setpoint Dial, On/Cancel w/Comm (3 inch) Digital Zone Sensor (3 inch) -
Page 30: Electrical Data
Electrical Data Electric Heat Table 16. Electric heat - kilowatts (kW) and current draw (amps) per model for 300 unit size Connection Voltage EH Ratings (kW/Amps) Unit Size Volts/ph/Hz Amps Amps Amps Amps Amps 120/1/60 12.5 16.7 20.8 208/1/60 240/1/60 10.4 277/1/60 (a) Size 300 units are wired for single stage operation. -
Page 31: Motor Data
Electrical Data FLA = Motor Full Load Amps MOP = Rating of maximum overcurrent protection device MCA = Minimum Circuit Ampacity = (2.25 x motor FLA) + Electric Heater Amps = 1.25 x (heater amps + motor FLA) Requirements of Standards: UL 1995 and CSA C22.2 No.236 •... -
Page 32: Ecm Overview And Setup
The ECM has integrated electronics, overload protection and short circuit protection. The motor contains no user-serviceable components inside. This section addresses integrating the new Trane electronically commutated motor (ECM) and VelociTach™ NOTICE motor control board. This exciting new series delivers... -
Page 33: Velocitach Motor Control Board
Integrates a versatile configurable auxiliary The VelociTach motor control board controls and temperature sensor. reports the performance of up to two Trane brushless DC • Incorporates various safety and lockout features, such (BLDC) motors. as maintaining proper fan speeds if electric heat is called for. -
Page 34: Installation And Initial Setup
Do not free spin the fan wheels with your hands while inadvertently energized. For variable frequency drives or the unit is powered on. The system is constantly other energy storing components provided by Trane or scanning and responding to the operational status of others, refer to the appropriate manufacturer’s literature the motors. -
Page 35: Velocitach Motor Control Board
If it is not practical to stay clear of these areas during adjustment of the motor control board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery. -
Page 36: User Interface
ECM Overview and Setup Figure 22. Operational status codes RPM Mode Indicates the current rpm of Motor 1 in the system. “0” rpm here indicate that no fan speed has been requested. RUNNING/ FAN STATUS Indicates the current rpm of Motor 2 in the system. - Page 37 ECM Overview and Setup Table 22. Button actuation levels Menu/Set Button Duration Action Short Press in <1 sec None Status Display Toggles between parameter name and value without saving Short Press in Configuration Display (abandons value if changed). Long Press/Hold >3 sec Enters the configuration menu in Status Display...
-
Page 38: Priority/Error Display
ECM Overview and Setup Figure 25. Change value of low speed value Figure 26. Verify value of 820 rpm Example 3 Example 4 We wish to double check to see if the value of “820 rpm” We wish to change the value of a protected value on an has been saved. -
Page 39: Adjustments
In addition, the CSTI adapter board offers configurability inadvertently energized. For variable frequency drives or that can be used in special cases to adjust the following other energy storing components provided by Trane or operation of the unit: others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of •... - Page 40 If it is not practical to stay clear of The motor control board is factory configured to drive the these areas during adjustment of the motor control unit to a minimum speed (catalogue “low speed” value), board, please contact Trane Global Parts for defined as once the analog (0–10V) input...
- Page 41 Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.
-
Page 42: Adjusting Optional Auto-Changeover Function On Csti Units
– On units with BACnet® controls (UC400-B), the Tracer® controller board will serve as the primary Every Trane unit with ECM motors will have modules logic to select the electric heat only if hot water is specifically configured at the factory for the operation of not available, but the motor control board will that unit. -
Page 43: Motor Control Board Settings
If it is not practical to stay clear of these areas during adjustment of the motor control board, please contact Trane Global Parts for configuration kit that allows easy powering of the motor control board outside of the unit with a 9V battery. - Page 44 ECM Overview and Setup Table 24. Configuration settings of the motor control board (for reference only) User Typical User Description on Interface Interface Unit Label Name Value Description Mtr 1 High Spd Sets the high-speed rpm for Motor 1. Do not exceed 2300 rpm.
- Page 45 ECM Overview and Setup Table 24. Configuration settings of the motor control board (for reference only) (continued) User Typical User Description on Interface Interface Unit Label Name Value Description Selects which mode should be assigned to the This setting has to be correct for proper unit ...
-
Page 46: Fan Speed Response Verification
ECM Overview and Setup Table 24. Configuration settings of the motor control board (for reference only) (continued) User Typical User Description on Interface Interface Unit Label Name Value Description Do NOT change this setting. This setting locks out the following parameters from being changed, for safe operation of the unit. -
Page 47: Installation - Controls
Installation - Controls ® Tracer UC400-B Controller General Wiring Guidelines Figure 33. Connecting wires to terminal ® The Tracer UC400-B single-zone VAV controller can be ® used in a stand-alone application or as part of a Tracer control system. To connect wires to the UC400-B controller or the ®... -
Page 48: Air-Fi® Wireless Communications System
• It can be soft set using the Tracer TU service tool. If the ® ® Air-Fi WCI is the perfect alternative to a Trane BACnet ® ® BACnet Device ID is set using the Tracer TU service wired communication link. Eliminating the... -
Page 49: Air-Fi® Wireless Communications Sensor (Wcs)
BAS-SVX40*-EN - Wireless Comm Installation, Operation and Maintenance manual • BAS-SVX55*-EN - Wireless Comm Network Design Best Practices Guide Quantity of WCIs per Network Each Trane wireless network can have a total of 31 WCIs (30 member WCIs plus one coordinator WCI). Each UNT-SVX041D-EN... -
Page 50: Mounting
Installation - Zone Sensors proper signal quality. Signal quality is affected by walls, barriers, and general clutter. For more information, see os available at www.trane.com. Zone Sensor Options Output power: North America: 100 mW Control sensor options include both unit-mounted Radio frequency: 2.4 GHz (IEEE Std 802.15.4-2003... -
Page 51: Zone Sensor Installation Location Considerations
Installation - Controls Zone Sensor Installation Note: Consult section 4.27.3 of the 2002 ADA (Americans with Disability Act) guideline, and local building codes, for further details regarding wheelchair Location Considerations requirements. When selecting a location for the zone sensor, avoid the Mounting Surfaces following: •... -
Page 52: Wired Zone Sensor
Installation - Controls Wired Zone Sensor Figure 43. Mounting zone sensor security screw Refer to the unit wiring schematic for specific wiring details and point connections. 1. Note the position of the setpoint adjustment knob and gently pry the adjustment knob from the cover using the blade of a small screwdriver. -
Page 53: Zone Sensor Settings
Installation - Controls To set the receiver and sensor addresses: Figure 44. Retention tabs on underside of receiver 1. Using a small screwdriver, set the three rotary address enclosure switches (locations S1, S2, S3) on the receiver to an address between 001 and 999 (see the figure below). You do not have to remove the covers to access the rotary address switches. -
Page 54: Associating Sensor To Receiver
Installation - Controls Figure 47. Receiver conducts 20 second channel scan Figure 49. Power sensor by removing insulation strip Sec. After the channel scan is finished, LED3 begins blinking Association is automatically initiated between the sensor (one-blink pattern) to show that the receiver is ready to be and the receiver. -
Page 55: Sensor Operations
Installation - Controls Sensor Operations Figure 50. Wireless Zone Sensor (WZS) with LED lights to test for battery strength Temporary Occupancy (Timed Override) Temporary occupancy (timed override) is available on model WDS. Temporary occupancy is selected for after- business-hours adjustment of temperature setting, fan settings, or heat/cool settings, when the system has changed to unoccupied mode. -
Page 56: Transmission Variables
Installation - Controls • LED3 flashes On every 2 seconds when it is ready to accept a sensor association request. When an association request is made by a sensor, the receiver instructs the sensor on which power level to operate. Then the receiver and sensor begin operation at the appropriate channel and power level (see “Observing... -
Page 57: Component Specifications
Installation - Controls Component Specifications Table 25. Wireless sensor specifications Component Type Sensor operating temperature 32°F to 122°F Receiver operating temperature -40°F to 158°F Storage temperature -40°F to 185°F Storage and operating humidity range 5% to 95%, non-condensing Accuracy 0.5°F over a range of 55ºF to 85°F Resolution 0.125°F over a range of 60°F to 80°F 0.25°F when outside this range Setpoint functional range (WDS only) - Page 58 Installation - Controls Table 26. Telkonet EcoInsight thermostat specifications Item Description Specification GENERAL INFORMATION Part Number SS6000-B EcoInsight Power 18-32VAC Height 4.0 (10.2) Dimensions — in (cm) Width 6.0 (15.2) Depth 1.5 (3.8) Size — in (cm) 3 (7.62) Display Type Liquid Crystal Display (LCD) ®...
-
Page 59: Wireless Display Sensor (Wds)
Installation - Controls Agency Compliance Table 27. Agency compliance information for wireless sensors Agency Compliance UL listed: UL 94-5VA Flammability rating UL 916: Energy management equipment FCC CFR47, Section 15.247 & Subpart E Digital Modulation Transmission with no SAR (FCC Identification TFP- 13651127) This device complies with Part 15 of the FCC Rules. - Page 60 Installation - Controls 2. Press the center button on the keypad to begin the • Press to scroll to the next selection (as configuration process. illustrated). • Press to move to the next menu (as Figure 54. Center button of keypad illustrated in the table below).
-
Page 61: Displaying Setpoint Or Temperature
Installation - Controls Displaying Setpoint or Temperature Figure 56. Locking and unlocking settings You can configure the sensor to display either the temperature (default) or setpoint. To select either option: 1. Verify that the sensor is in operating mode and at the home screen. -
Page 62: Changing Room Temperature
Press the Test button to display the battery status symbols. speeds. Use only UL-listed non-rechargeable 1.5 V lithium AA Indicates that the batteries (Trane p/n X13770035010 or equivalent). fan setting is Off. UNT-SVX041D-EN... -
Page 63: Start Up
Failure to follow instructions below could result in coil 55°F for cooling or 85°F for heating. damage. Drain and vent coils when not in use. Trane recommends glycol protection in all possible freezing The appropriate control valve will actuate assuming the applications. -
Page 64: Sequence Of Operation
Occupied Bypass Mode input BI1. The controller is placed in occupied bypass mode when • A timed override request from a Trane zone sensor (see the controller is operating in the unoccupied mode and “Timed Override Control,” p. 64). when either the timed override ON button on the Trane zone sensor is pressed or the controller receives a •... -
Page 65: Zone Temperature Control
CANCEL operation. button is pressed on the Trane zone sensor or the occupied Discharge Air Tempering bypass time expires. Zone Temperature Control... -
Page 66: Fan Operation
Start Up desired heating or cooling operation is verified. This is signal or fan speed switch setting (unless either of these is done using the entering water temperature sampling OFF, which in turn, will control the fan OFF). function, for which a valid entering water temperature is The fan turns OFF when: required. -
Page 67: Valve Operation
Start Up Three-Wire Modulating Valve Calibration Note: Exhaust fan configuration cannot be selected with 3-speed fan operation. Modulating valve calibration is automatic. During normal Important: If exhaust control is added to an existing controller operation, the controller overdrives the actuator configuration, all other configuration (135 percent of the stroke time) whenever there is a options should be verified to match the... -
Page 68: Peer-To-Peer Communication
Start Up Peer-to-Peer Communication for 1 minute before generating another diagnostic and performing a unit shutdown. A diagnostic reset can be Peer-to-peer communication is accomplished by means of sent to the controller from the Tracer® TU Alarms page or custom TGP2 programming in the Tracer® SC system by temporarily overriding the Reset Diagnostic Request on controller or via hard wiring only between controllers. -
Page 69: Routine Maintenance
Routine Maintenance Safety doubt have a qualified electrician perform the service work. • Ensure that the fan has stopped rotating before WARNING proceeding to work within the unit. • If the unit is equipped with a fuse or circuit breaker, do Hazardous Voltage! not change out either of these devices with ones of a Failure to disconnect power before servicing could... -
Page 70: Replacement Parts
Routine Maintenance Replacement Parts When ordering replacement parts, refer to model and serial number located on the unit nameplate, which is located on the fan/motor cover. Table 30. Filter size Filter Size (1 inch thick) Unit Size Width (in.) Height (in.) 12.15 18.375 12.15... -
Page 71: Diagnostics And Troubleshooting
Diagnostics and Troubleshooting This section is intended to be used as a diagnostic aid only. For detailed repair procedures, contact your local Trane service representative. WARNING Hazardous Service Procedures! Failure to follow all of the recommended safety warnings provided, could result in death or serious injury. The maintenance and troubleshooting procedures recommended in this manual could result in exposure to electrical, mechanical or other potential safety hazards. -
Page 72: Wireless Zone Sensors (Wzs)
Diagnostics and Troubleshooting Table 31. Fan coil troubleshooting recommendations (continued) Symptom Probable Cause Recommended Action Missing filters Replace filters Excess dirt in unit Filter bypass Reduce filter bypass by ensuring all blockoffs are in place. Microbial growth (mold) inside air Standing water in drain pan See “Standing water in drain pan”... -
Page 73: Receiver Diagnostics
Diagnostics and Troubleshooting Receiver Diagnostics Figure 61. WDS shows test symbols and error codes LED1, LED2, and LED3, located on the receiver of all models respond to diagnostics by exhibiting specific blinking patterns. They respond independently of any user action (see the table below). Test symbols Error code Test button... -
Page 74: Testing Signal Strength
Diagnostics and Troubleshooting Testing Signal Strength • Models WZS: LED1, LED2, and LED3 respond by indicating signal strength. You can view them on the To initiate a signal strength test, push the Test button on sensor and the receiver (tables below). the sensor (see location of Test button in Figure 60 •... -
Page 75: Testing Battery Status
“Testing already installed. Replacement batteries are available at Signal Strength,” page Trane Service Parts Centers (p/n X13770035010) or other local suppliers. Replacing Sensor Batteries Battery Life Sensor battery type, length of life, and installation are addressed in this section. -
Page 76: Manual Association
Diagnostics and Troubleshooting Notes: establish that the signal strength (“Testing Signal Strength,” page 74) and the battery life “Testing Battery • If lithium batteries are temporarily unavailable, Status,” page 75) are adequate for proper functioning. alkaline batteries can be used. However, alkaline battery life is very short by comparison. -
Page 77: Servicing/Testing Wireless Zone Sensors
Diagnostics and Troubleshooting Servicing/Testing Wireless Zone Procedure for Testing Receiver Sensors If the receiver is not working as expected: 1. Verify that the receiver is powered. If the wireless sensor system is not working as expected, 2. Set the receiver address to 000 to force the zone use the tools and procedure described in this section. -
Page 78: Measuring Output Resistance
Diagnostics and Troubleshooting Measuring Output Resistance Cleaning the Sensor To measure the resistance of receiver outputs for zone temperature and setpoints for all models, and heating NOTICE setpoint and fan/system for the WDS: Sensor Damage! 1. Ensure that the GND-SIGNAL (black) wire and the Do not spray glass cleaner or any other solution directly GND-POWER (yellow) wire are grounded to the on the sensor as it could damage it. -
Page 79: Led Activity
Diagnostics and Troubleshooting Tracer® UC400-B Controller LED activity, an indication or troubleshooting tip for each, and any related notes. LED Activity ® LEDs are located on the front of the Tracer UC400-B controller. The following table provides a description of Table 41. -
Page 80: Overriding Outputs
For more complete information, refer to • Manual (latching) diagnostics the product literature for the building automation system. • Automatic (non-latching) diagnostics Trane Service Tools • Smart reset diagnostics Tracer® TU can be used to reset diagnostics present in a • Informational diagnostics Tracer®... -
Page 81: Fans With Uc400-B Controller
Diagnostics and Troubleshooting Table 42. Diagnostics generated by UC400-B controller Diagnostic Probable Cause Consequences Diagnostic Type • Fan Unaffected Fan run hours exceed the time set to Filter change required • Valves Unaffected Informational indicate filter change. • Electric heat Unaffected •... -
Page 82: Valves With Uc400-B Controller
Diagnostics and Troubleshooting Fans with UC400-B Controller Table 43. Fan does not energize (continued) Probable Cause Explanation The controller must be properly configured based on the actual installed end devices and application. If the unit Unit configuration configuration does not match the actual end device, the fans may not work correctly. After power-up, the controller always observes a random start from 5 to 30 seconds. -
Page 83: Electric Heat With Uc400-B Controller
Diagnostics and Troubleshooting Electric Heat with UC400-B Controller Table 46. Electric heat does not energize Probable Cause Explanation The wiring between the controller outputs and the end devices must be present and correct for normal operation. Unit wiring Refer to applicable wiring diagram. Check the control contactors or the electric heat element, including any auxiliary safety interlocks, to ensure proper Failed end device operation. -
Page 84: Ecm Motors
For variable frequency drives device fails to actuate (due to device failure, or or other energy storing components provided by Trane safety/down-stream lockouts). or others, refer to the appropriate manufacturer’s The VelociTach motor control board also coordinates the... -
Page 85: Motor
Diagnostics and Troubleshooting Motor When configured correctly, the system will always respond positively to direct, indirect, and conflicting speed The motor connections and motor plug connections to the requests with very few exceptions. adapter boards should be secure. Unit should be powered off to check the fit of the connectors. -
Page 86: Replacing Ecm Components
VelociTach motor WARNING control board. If it is not practical to stay clear of these areas during adjustment, please contact Trane Global Hazardous Voltage w/Capacitors! Parts for configuration kit that allows easy powering of Failure to disconnect power and discharge capacitors the engine board outside of the unit with a 9V battery. -
Page 87: Circuit Module Replacement
Diagnostics and Troubleshooting Replacement Checklist 2. If replacing the VelociTach motor control board, special care should be taken to avoid electro-static discharge damage. Please use an ESD protection wrist-strap and NOTICE frequently touch a grounded surface (with unit power Equipment Damage! off) to discharge any static buildup. - Page 88 Diagnostics and Troubleshooting RPM Mode Figure 65. Sample arrangement: electric heat relay The motors are programmed from the factory to run in rpm mode and will not change rpm based on external static pressure, except at the performance limits of the motor/controller.
-
Page 89: Wiring Diagrams
Wiring Diagrams Figure 66. High voltage wiring diagram UNT-SVX041D-EN... - Page 90 Wiring Diagrams Figure 67. CSTI wiring diagram UNT-SVX041D-EN...
- Page 91 Wiring Diagrams Figure 68. UC400-B wiring diagram UNT-SVX041D-EN...
- Page 92 Wiring Diagrams Figure 69. Electric heat wiring diagram UNT-SVX041D-EN...
- Page 93 Wiring Diagrams Figure 70. UC400-B component layout UNT-SVX041D-EN...
- Page 94 Wiring Diagrams Figure 71. CSTI component layout UNT-SVX041D-EN...
- Page 96 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.
Need help?
Do you have a question about the FCV and is the answer not in the manual?
Questions and answers